src/com/owncloud/android/authentication/AuthenticatorActivity.java

   1 /* ownCloud Android client application
   2  *   Copyright (C) 2012  Bartek Przybylski
   3  *   Copyright (C) 2012-2013 ownCloud Inc.
   4  *
   5  *   This program is free software: you can redistribute it and/or modify
   6  *   it under the terms of the GNU General Public License version 2,
   7  *   as published by the Free Software Foundation.
   8  *
   9  *   This program is distributed in the hope that it will be useful,
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *   GNU General Public License for more details.
  13  *
  14  *   You should have received a copy of the GNU General Public License
  15  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  */
  18
  19 package com.owncloud.android.authentication;
  20
  21 import android.accounts.Account;
  22 import android.accounts.AccountManager;
  23 import android.app.AlertDialog;
  24 import android.app.Dialog;
  25 import android.app.ProgressDialog;
  26 import android.content.DialogInterface;
  27 import android.content.Intent;
  28 import android.content.SharedPreferences;
  29 import android.graphics.Rect;
  30 import android.graphics.drawable.Drawable;
  31 import android.net.Uri;
  32 import android.os.Bundle;
  33 import android.os.Handler;
  34 import android.preference.PreferenceManager;
  35 import android.support.v4.app.Fragment;
  36 import android.text.Editable;
  37 import android.text.InputType;
  38 import android.text.TextWatcher;
  39 import android.view.KeyEvent;
  40 import android.view.MotionEvent;
  41 import android.view.View;
  42 import android.view.View.OnFocusChangeListener;
  43 import android.view.View.OnTouchListener;
  44 import android.view.Window;
  45 import android.view.inputmethod.EditorInfo;
  46 import android.widget.Button;
  47 import android.widget.CheckBox;
  48 import android.widget.EditText;
  49 import android.widget.TextView;
  50 import android.widget.TextView.OnEditorActionListener;
  51
  52 import com.actionbarsherlock.app.SherlockDialogFragment;
  53 import com.owncloud.android.MainApp;
  54 import com.owncloud.android.R;
  55 import com.owncloud.android.authentication.SsoWebViewClient.SsoWebViewClientListener;
  56 import com.owncloud.android.oc_framework.accounts.AccountTypeUtils;
  57 import com.owncloud.android.oc_framework.accounts.OwnCloudAccount;
  58 import com.owncloud.android.oc_framework.network.webdav.OwnCloudClientFactory;
  59 import com.owncloud.android.oc_framework.network.webdav.WebdavClient;
  60 import com.owncloud.android.operations.OAuth2GetAccessToken;
  61 import com.owncloud.android.oc_framework.operations.OnRemoteOperationListener;
  62 import com.owncloud.android.operations.OwnCloudServerCheckOperation;
  63 import com.owncloud.android.oc_framework.operations.RemoteOperation;
  64 import com.owncloud.android.oc_framework.operations.RemoteOperationResult;
  65 import com.owncloud.android.oc_framework.operations.RemoteOperationResult.ResultCode;
  66 import com.owncloud.android.oc_framework.operations.remote.ExistenceCheckRemoteOperation;
  67 import com.owncloud.android.oc_framework.operations.remote.GetUserNameRemoteOperation;
  68 import com.owncloud.android.ui.dialog.SamlWebViewDialog;
  69 import com.owncloud.android.ui.dialog.SslValidatorDialog;
  70 import com.owncloud.android.ui.dialog.SslValidatorDialog.OnSslValidatorListener;
  71 import com.owncloud.android.utils.Log_OC;
  72 import com.owncloud.android.oc_framework.utils.OwnCloudVersion;
  73
  74 /**
  75  * This Activity is used to add an ownCloud account to the App
  76  *
  77  * @author Bartek Przybylski
  78  * @author David A. Velasco
  79  */
  80 public class AuthenticatorActivity extends AccountAuthenticatorActivity
  81 implements  OnRemoteOperationListener, OnSslValidatorListener, OnFocusChangeListener, OnEditorActionListener, SsoWebViewClientListener{
  82
  83     private static final String TAG = AuthenticatorActivity.class.getSimpleName();
  84
  85     public static final String EXTRA_ACCOUNT = "ACCOUNT";
  86     public static final String EXTRA_USER_NAME = "USER_NAME";
  87     public static final String EXTRA_HOST_NAME = "HOST_NAME";
  88     public static final String EXTRA_ACTION = "ACTION";
  89     public static final String EXTRA_ENFORCED_UPDATE = "ENFORCE_UPDATE";
  90
  91     private static final String KEY_AUTH_MESSAGE_VISIBILITY = "AUTH_MESSAGE_VISIBILITY";
  92     private static final String KEY_AUTH_MESSAGE_TEXT = "AUTH_MESSAGE_TEXT";
  93     private static final String KEY_HOST_URL_TEXT = "HOST_URL_TEXT";
  94     private static final String KEY_OC_VERSION = "OC_VERSION";
  95     private static final String KEY_ACCOUNT = "ACCOUNT";
  96     private static final String KEY_SERVER_VALID = "SERVER_VALID";
  97     private static final String KEY_SERVER_CHECKED = "SERVER_CHECKED";
  98     private static final String KEY_SERVER_CHECK_IN_PROGRESS = "SERVER_CHECK_IN_PROGRESS";
  99     private static final String KEY_SERVER_STATUS_TEXT = "SERVER_STATUS_TEXT";
 100     private static final String KEY_SERVER_STATUS_ICON = "SERVER_STATUS_ICON";
 101     private static final String KEY_IS_SSL_CONN = "IS_SSL_CONN";
 102     private static final String KEY_PASSWORD_VISIBLE = "PASSWORD_VISIBLE";
 103     private static final String KEY_AUTH_STATUS_TEXT = "AUTH_STATUS_TEXT";
 104     private static final String KEY_AUTH_STATUS_ICON = "AUTH_STATUS_ICON";
 105     private static final String KEY_REFRESH_BUTTON_ENABLED = "KEY_REFRESH_BUTTON_ENABLED";
 106
 107     private static final String AUTH_ON = "on";
 108     private static final String AUTH_OFF = "off";
 109     private static final String AUTH_OPTIONAL = "optional";
 110
 111     private static final int DIALOG_LOGIN_PROGRESS = 0;
 112     private static final int DIALOG_SSL_VALIDATOR = 1;
 113     private static final int DIALOG_CERT_NOT_SAVED = 2;
 114     private static final int DIALOG_OAUTH2_LOGIN_PROGRESS = 3;
 115
 116     public static final byte ACTION_CREATE = 0;
 117     public static final byte ACTION_UPDATE_TOKEN = 1;
 118
 119     private static final String TAG_SAML_DIALOG = "samlWebViewDialog";
 120
 121     private String mHostBaseUrl;
 122     private OwnCloudVersion mDiscoveredVersion;
 123
 124     private String mAuthMessageText;
 125     private int mAuthMessageVisibility, mServerStatusText, mServerStatusIcon;
 126     private boolean mServerIsChecked, mServerIsValid, mIsSslConn;
 127     private int mAuthStatusText, mAuthStatusIcon;
 128     private TextView mAuthStatusLayout;
 129
 130     private final Handler mHandler = new Handler();
 131     private Thread mOperationThread;
 132     private OwnCloudServerCheckOperation mOcServerChkOperation;
 133     private ExistenceCheckRemoteOperation mAuthCheckOperation;
 134     private RemoteOperationResult mLastSslUntrustedServerResult;
 135
 136     private Uri mNewCapturedUriFromOAuth2Redirection;
 137
 138     private AccountManager mAccountMgr;
 139     private boolean mJustCreated;
 140     private byte mAction;
 141     private Account mAccount;
 142
 143     private TextView mAuthMessage;
 144
 145     private EditText mHostUrlInput;
 146     private boolean mHostUrlInputEnabled;
 147     private View mRefreshButton;
 148
 149     private String mAuthTokenType;
 150
 151     private EditText mUsernameInput;
 152     private EditText mPasswordInput;
 153
 154     private CheckBox mOAuth2Check;
 155
 156     private TextView mOAuthAuthEndpointText;
 157     private TextView mOAuthTokenEndpointText;
 158
 159     private SamlWebViewDialog mSamlDialog;
 160
 161     private View mOkButton;
 162
 163     private String mAuthToken;
 164
 165     private boolean mResumed; // Control if activity is resumed
 166
 167
 168     /**
 169      * {@inheritDoc}
 170      *
 171      * IMPORTANT ENTRY POINT 1: activity is shown to the user
 172      */
 173     @Override
 174     protected void onCreate(Bundle savedInstanceState) {
 175         super.onCreate(savedInstanceState);
 176         getWindow().requestFeature(Window.FEATURE_NO_TITLE);
 177
 178         /// set view and get references to view elements
 179         setContentView(R.layout.account_setup);
 180         mAuthMessage = (TextView) findViewById(R.id.auth_message);
 181         mHostUrlInput = (EditText) findViewById(R.id.hostUrlInput);
 182         mHostUrlInput.setText(getString(R.string.server_url));  // valid although R.string.server_url is an empty string
 183         mUsernameInput = (EditText) findViewById(R.id.account_username);
 184         mPasswordInput = (EditText) findViewById(R.id.account_password);
 185         mOAuthAuthEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_1);
 186         mOAuthTokenEndpointText = (TextView)findViewById(R.id.oAuthEntryPoint_2);
 187         mOAuth2Check = (CheckBox) findViewById(R.id.oauth_onOff_check);
 188         mOkButton = findViewById(R.id.buttonOK);
 189         mAuthStatusLayout = (TextView) findViewById(R.id.auth_status_text);
 190
 191         /// set Host Url Input Enabled
 192         mHostUrlInputEnabled = getResources().getBoolean(R.bool.show_server_url_input);
 193
 194         /// set visibility of link for new users
 195         boolean accountRegisterVisibility = getResources().getBoolean(R.bool.show_welcome_link);
 196         Button welcomeLink = (Button) findViewById(R.id.welcome_link);
 197         if (welcomeLink != null) {
 198             if (accountRegisterVisibility) {
 199                 welcomeLink.setVisibility(View.VISIBLE);
 200                 welcomeLink.setText(String.format(getString(R.string.auth_register), getString(R.string.app_name)));
 201             } else {
 202                 findViewById(R.id.welcome_link).setVisibility(View.GONE);
 203             }
 204         }
 205
 206         /// initialization
 207         mAccountMgr = AccountManager.get(this);
 208         mNewCapturedUriFromOAuth2Redirection = null;
 209         mAction = getIntent().getByteExtra(EXTRA_ACTION, ACTION_CREATE);
 210         mAccount = null;
 211         mHostBaseUrl = "";
 212         boolean refreshButtonEnabled = false;
 213
 214         // URL input configuration applied
 215         if (!mHostUrlInputEnabled)
 216         {
 217             findViewById(R.id.hostUrlFrame).setVisibility(View.GONE);
 218             mRefreshButton = findViewById(R.id.centeredRefreshButton);
 219
 220         } else {
 221             mRefreshButton = findViewById(R.id.embeddedRefreshButton);
 222         }
 223
 224         if (savedInstanceState == null) {
 225             mResumed = false;
 226             /// connection state and info
 227             mAuthMessageVisibility = View.GONE;
 228             mServerStatusText = mServerStatusIcon = 0;
 229             mServerIsValid = false;
 230             mServerIsChecked = false;
 231             mIsSslConn = false;
 232             mAuthStatusText = mAuthStatusIcon = 0;
 233
 234             /// retrieve extras from intent
 235             mAccount = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 236             if (mAccount != null) {
 237                 String ocVersion = mAccountMgr.getUserData(mAccount, OwnCloudAccount.Constants.KEY_OC_VERSION);
 238                 if (ocVersion != null) {
 239                     mDiscoveredVersion = new OwnCloudVersion(ocVersion);
 240                 }
 241                 mHostBaseUrl = normalizeUrl(mAccountMgr.getUserData(mAccount, OwnCloudAccount.Constants.KEY_OC_BASE_URL));
 242                 mHostUrlInput.setText(mHostBaseUrl);
 243                 String userName = mAccount.name.substring(0, mAccount.name.lastIndexOf('@'));
 244                 mUsernameInput.setText(userName);
 245             }
 246             initAuthorizationMethod();  // checks intent and setup.xml to determine mCurrentAuthorizationMethod
 247             mJustCreated = true;
 248
 249             if (mAction == ACTION_UPDATE_TOKEN || !mHostUrlInputEnabled) {
 250                 checkOcServer();
 251             }
 252
 253         } else {
 254             mResumed = true;
 255             /// connection state and info
 256             mAuthMessageVisibility = savedInstanceState.getInt(KEY_AUTH_MESSAGE_VISIBILITY);
 257             mAuthMessageText = savedInstanceState.getString(KEY_AUTH_MESSAGE_TEXT);
 258             mServerIsValid = savedInstanceState.getBoolean(KEY_SERVER_VALID);
 259             mServerIsChecked = savedInstanceState.getBoolean(KEY_SERVER_CHECKED);
 260             mServerStatusText = savedInstanceState.getInt(KEY_SERVER_STATUS_TEXT);
 261             mServerStatusIcon = savedInstanceState.getInt(KEY_SERVER_STATUS_ICON);
 262             mIsSslConn = savedInstanceState.getBoolean(KEY_IS_SSL_CONN);
 263             mAuthStatusText = savedInstanceState.getInt(KEY_AUTH_STATUS_TEXT);
 264             mAuthStatusIcon = savedInstanceState.getInt(KEY_AUTH_STATUS_ICON);
 265             if (savedInstanceState.getBoolean(KEY_PASSWORD_VISIBLE, false)) {
 266                 showPassword();
 267             }
 268
 269             /// server data
 270             String ocVersion = savedInstanceState.getString(KEY_OC_VERSION);
 271             if (ocVersion != null) {
 272                 mDiscoveredVersion = new OwnCloudVersion(ocVersion);
 273             }
 274             mHostBaseUrl = savedInstanceState.getString(KEY_HOST_URL_TEXT);
 275
 276             // account data, if updating
 277             mAccount = savedInstanceState.getParcelable(KEY_ACCOUNT);
 278             mAuthTokenType = savedInstanceState.getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 279             if (mAuthTokenType == null) {
 280                 mAuthTokenType =  AccountTypeUtils.getAuthTokenTypePass(MainApp.getAccountType());
 281
 282             }
 283
 284             // check if server check was interrupted by a configuration change
 285             if (savedInstanceState.getBoolean(KEY_SERVER_CHECK_IN_PROGRESS, false)) {
 286                 checkOcServer();
 287             }
 288
 289             // refresh button enabled
 290             refreshButtonEnabled = savedInstanceState.getBoolean(KEY_REFRESH_BUTTON_ENABLED);
 291
 292
 293         }
 294
 295         if (mAuthMessageVisibility== View.VISIBLE) {
 296             showAuthMessage(mAuthMessageText);
 297         }
 298         else {
 299             hideAuthMessage();
 300         }
 301         adaptViewAccordingToAuthenticationMethod();
 302         showServerStatus();
 303         showAuthStatus();
 304
 305         if (mAction == ACTION_UPDATE_TOKEN) {
 306             /// lock things that should not change
 307             mHostUrlInput.setEnabled(false);
 308             mHostUrlInput.setFocusable(false);
 309             mUsernameInput.setEnabled(false);
 310             mUsernameInput.setFocusable(false);
 311             mOAuth2Check.setVisibility(View.GONE);
 312         }
 313
 314         //if (mServerIsChecked && !mServerIsValid && mRefreshButtonEnabled) showRefreshButton();
 315         if (mServerIsChecked && !mServerIsValid && refreshButtonEnabled) showRefreshButton();
 316         mOkButton.setEnabled(mServerIsValid); // state not automatically recovered in configuration changes
 317
 318         if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType) ||
 319                 !AUTH_OPTIONAL.equals(getString(R.string.auth_method_oauth2))) {
 320             mOAuth2Check.setVisibility(View.GONE);
 321         }
 322
 323         mPasswordInput.setText("");     // clean password to avoid social hacking (disadvantage: password in removed if the device is turned aside)
 324
 325         /// bind view elements to listeners and other friends
 326         mHostUrlInput.setOnFocusChangeListener(this);
 327         mHostUrlInput.setImeOptions(EditorInfo.IME_ACTION_NEXT);
 328         mHostUrlInput.setOnEditorActionListener(this);
 329         mHostUrlInput.addTextChangedListener(new TextWatcher() {
 330
 331             @Override
 332             public void afterTextChanged(Editable s) {
 333                 if (!mHostBaseUrl.equals(normalizeUrl(mHostUrlInput.getText().toString()))) {
 334                     mOkButton.setEnabled(false);
 335                 }
 336             }
 337
 338             @Override
 339             public void beforeTextChanged(CharSequence s, int start, int count, int after) {
 340             }
 341
 342             @Override
 343             public void onTextChanged(CharSequence s, int start, int before, int count) {
 344                 if (!mResumed) {
 345                     mAuthStatusIcon = 0;
 346                     mAuthStatusText = 0;
 347                     showAuthStatus();
 348                 }
 349                 mResumed = false;
 350             }
 351         });
 352
 353         mPasswordInput.setOnFocusChangeListener(this);
 354         mPasswordInput.setImeOptions(EditorInfo.IME_ACTION_DONE);
 355         mPasswordInput.setOnEditorActionListener(this);
 356         mPasswordInput.setOnTouchListener(new RightDrawableOnTouchListener() {
 357             @Override
 358             public boolean onDrawableTouch(final MotionEvent event) {
 359                 if (event.getAction() == MotionEvent.ACTION_UP) {
 360                     AuthenticatorActivity.this.onViewPasswordClick();
 361                 }
 362                 return true;
 363             }
 364         });
 365
 366         findViewById(R.id.scroll).setOnTouchListener(new OnTouchListener() {
 367             @Override
 368             public boolean onTouch(View view, MotionEvent event) {
 369                 if (event.getAction() == MotionEvent.ACTION_DOWN) {
 370                     if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType) &&
 371                             mHostUrlInput.hasFocus()) {
 372                         checkOcServer();
 373                     }
 374                 }
 375                 return false;
 376             }
 377         });
 378     }
 379
 380
 381
 382     private void initAuthorizationMethod() {
 383         boolean oAuthRequired = false;
 384         boolean samlWebSsoRequired = false;
 385
 386         mAuthTokenType = getIntent().getExtras().getString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE);
 387         mAccount = getIntent().getExtras().getParcelable(EXTRA_ACCOUNT);
 388
 389         // TODO could be a good moment to validate the received token type, if not null
 390
 391         if (mAuthTokenType == null) {
 392             if (mAccount != null) {
 393                 /// same authentication method than the one used to create the account to update
 394                 oAuthRequired = (mAccountMgr.getUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_OAUTH2) != null);
 395                 samlWebSsoRequired = (mAccountMgr.getUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_SAML_WEB_SSO) != null);
 396
 397             } else {
 398                 /// use the one set in setup.xml
 399                 oAuthRequired = AUTH_ON.equals(getString(R.string.auth_method_oauth2));
 400                 samlWebSsoRequired = AUTH_ON.equals(getString(R.string.auth_method_saml_web_sso));
 401             }
 402             if (oAuthRequired) {
 403                 mAuthTokenType = AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType());
 404             } else if (samlWebSsoRequired) {
 405                 mAuthTokenType = AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType());
 406             } else {
 407                 mAuthTokenType = AccountTypeUtils.getAuthTokenTypePass(MainApp.getAccountType());
 408             }
 409         }
 410
 411         if (mAccount != null) {
 412             String userName = mAccount.name.substring(0, mAccount.name.lastIndexOf('@'));
 413             mUsernameInput.setText(userName);
 414         }
 415
 416         mOAuth2Check.setChecked(AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType));
 417
 418     }
 419
 420     /**
 421      * Saves relevant state before {@link #onPause()}
 422      *
 423      * Do NOT save {@link #mNewCapturedUriFromOAuth2Redirection}; it keeps a temporal flag, intended to defer the
 424      * processing of the redirection caught in {@link #onNewIntent(Intent)} until {@link #onResume()}
 425      *
 426      * See {@link #loadSavedInstanceState(Bundle)}
 427      */
 428     @Override
 429     protected void onSaveInstanceState(Bundle outState) {
 430         super.onSaveInstanceState(outState);
 431
 432         /// connection state and info
 433         outState.putInt(KEY_AUTH_MESSAGE_VISIBILITY, mAuthMessage.getVisibility());
 434         outState.putString(KEY_AUTH_MESSAGE_TEXT, mAuthMessage.getText().toString());
 435         outState.putInt(KEY_SERVER_STATUS_TEXT, mServerStatusText);
 436         outState.putInt(KEY_SERVER_STATUS_ICON, mServerStatusIcon);
 437         outState.putBoolean(KEY_SERVER_VALID, mServerIsValid);
 438         outState.putBoolean(KEY_SERVER_CHECKED, mServerIsChecked);
 439         outState.putBoolean(KEY_SERVER_CHECK_IN_PROGRESS, (!mServerIsValid && mOcServerChkOperation != null));
 440         outState.putBoolean(KEY_IS_SSL_CONN, mIsSslConn);
 441         outState.putBoolean(KEY_PASSWORD_VISIBLE, isPasswordVisible());
 442         outState.putInt(KEY_AUTH_STATUS_ICON, mAuthStatusIcon);
 443         outState.putInt(KEY_AUTH_STATUS_TEXT, mAuthStatusText);
 444
 445         /// server data
 446         if (mDiscoveredVersion != null) {
 447             outState.putString(KEY_OC_VERSION, mDiscoveredVersion.toString());
 448         }
 449         outState.putString(KEY_HOST_URL_TEXT, mHostBaseUrl);
 450
 451         /// account data, if updating
 452         if (mAccount != null) {
 453             outState.putParcelable(KEY_ACCOUNT, mAccount);
 454         }
 455         outState.putString(AccountAuthenticator.KEY_AUTH_TOKEN_TYPE, mAuthTokenType);
 456
 457         // refresh button enabled
 458         outState.putBoolean(KEY_REFRESH_BUTTON_ENABLED, (mRefreshButton.getVisibility() == View.VISIBLE));
 459
 460
 461     }
 462
 463
 464     /**
 465      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION request
 466      * is caught here.
 467      *
 468      * To make this possible, this activity needs to be qualified with android:launchMode = "singleTask" in the
 469      * AndroidManifest.xml file.
 470      */
 471     @Override
 472     protected void onNewIntent (Intent intent) {
 473         Log_OC.d(TAG, "onNewIntent()");
 474         Uri data = intent.getData();
 475         if (data != null && data.toString().startsWith(getString(R.string.oauth2_redirect_uri))) {
 476             mNewCapturedUriFromOAuth2Redirection = data;
 477         }
 478     }
 479
 480
 481     /**
 482      * The redirection triggered by the OAuth authentication server as response to the GET AUTHORIZATION, and
 483      * deferred in {@link #onNewIntent(Intent)}, is processed here.
 484      */
 485     @Override
 486     protected void onResume() {
 487         super.onResume();
 488         if (mAction == ACTION_UPDATE_TOKEN && mJustCreated && getIntent().getBooleanExtra(EXTRA_ENFORCED_UPDATE, false)) {
 489             if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
 490                 //Toast.makeText(this, R.string.auth_expired_oauth_token_toast, Toast.LENGTH_LONG).show();
 491                 showAuthMessage(getString(R.string.auth_expired_oauth_token_toast));
 492             } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
 493                 //Toast.makeText(this, R.string.auth_expired_saml_sso_token_toast, Toast.LENGTH_LONG).show();
 494                 showAuthMessage(getString(R.string.auth_expired_saml_sso_token_toast));
 495             } else {
 496                 //Toast.makeText(this, R.string.auth_expired_basic_auth_toast, Toast.LENGTH_LONG).show();
 497                 showAuthMessage(getString(R.string.auth_expired_basic_auth_toast));
 498             }
 499         }
 500
 501         if (mNewCapturedUriFromOAuth2Redirection != null) {
 502             getOAuth2AccessTokenFromCapturedRedirection();
 503         }
 504
 505         mJustCreated = false;
 506
 507     }
 508
 509
 510     /**
 511      * Parses the redirection with the response to the GET AUTHORIZATION request to the
 512      * oAuth server and requests for the access token (GET ACCESS TOKEN)
 513      */
 514     private void getOAuth2AccessTokenFromCapturedRedirection() {
 515         /// Parse data from OAuth redirection
 516         String queryParameters = mNewCapturedUriFromOAuth2Redirection.getQuery();
 517         mNewCapturedUriFromOAuth2Redirection = null;
 518
 519         /// Showing the dialog with instructions for the user.
 520         showDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
 521
 522         /// GET ACCESS TOKEN to the oAuth server
 523         RemoteOperation operation = new OAuth2GetAccessToken(   getString(R.string.oauth2_client_id),
 524                 getString(R.string.oauth2_redirect_uri),
 525                 getString(R.string.oauth2_grant_type),
 526                 queryParameters);
 527         //WebdavClient client = OwnCloudClientUtils.createOwnCloudClient(Uri.parse(getString(R.string.oauth2_url_endpoint_access)), getApplicationContext());
 528         WebdavClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mOAuthTokenEndpointText.getText().toString().trim()), getApplicationContext(), true);
 529         operation.execute(client, this, mHandler);
 530     }
 531
 532
 533
 534     /**
 535      * Handles the change of focus on the text inputs for the server URL and the password
 536      */
 537     public void onFocusChange(View view, boolean hasFocus) {
 538         if (view.getId() == R.id.hostUrlInput) {
 539             if (!hasFocus) {
 540                 onUrlInputFocusLost((TextView) view);
 541             }
 542             else {
 543                 hideRefreshButton();
 544             }
 545
 546         } else if (view.getId() == R.id.account_password) {
 547             onPasswordFocusChanged((TextView) view, hasFocus);
 548         }
 549     }
 550
 551
 552     /**
 553      * Handles changes in focus on the text input for the server URL.
 554      *
 555      * IMPORTANT ENTRY POINT 2: When (!hasFocus), user wrote the server URL and changed to
 556      * other field. The operation to check the existence of the server in the entered URL is
 557      * started.
 558      *
 559      * When hasFocus:    user 'comes back' to write again the server URL.
 560      *
 561      * @param hostInput     TextView with the URL input field receiving the change of focus.
 562      */
 563     private void onUrlInputFocusLost(TextView hostInput) {
 564         if (!mHostBaseUrl.equals(normalizeUrl(mHostUrlInput.getText().toString()))) {
 565             checkOcServer();
 566         } else {
 567             mOkButton.setEnabled(mServerIsValid);
 568             if (!mServerIsValid) {
 569                 showRefreshButton();
 570             }
 571         }
 572     }
 573
 574
 575     private void checkOcServer() {
 576         String uri = trimUrlWebdav(mHostUrlInput.getText().toString().trim());
 577
 578         if (!mHostUrlInputEnabled){
 579             uri = getString(R.string.server_url);
 580         }
 581
 582         mServerIsValid = false;
 583         mServerIsChecked = false;
 584         mOkButton.setEnabled(false);
 585         mDiscoveredVersion = null;
 586         hideRefreshButton();
 587         if (uri.length() != 0) {
 588             mServerStatusText = R.string.auth_testing_connection;
 589             mServerStatusIcon = R.drawable.progress_small;
 590             showServerStatus();
 591             mOcServerChkOperation = new  OwnCloudServerCheckOperation(uri, this);
 592             WebdavClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(uri), this, true);
 593             mOperationThread = mOcServerChkOperation.execute(client, this, mHandler);
 594         } else {
 595             mServerStatusText = 0;
 596             mServerStatusIcon = 0;
 597             showServerStatus();
 598         }
 599     }
 600
 601
 602     /**
 603      * Handles changes in focus on the text input for the password (basic authorization).
 604      *
 605      * When (hasFocus), the button to toggle password visibility is shown.
 606      *
 607      * When (!hasFocus), the button is made invisible and the password is hidden.
 608      *
 609      * @param passwordInput    TextView with the password input field receiving the change of focus.
 610      * @param hasFocus          'True' if focus is received, 'false' if is lost
 611      */
 612     private void onPasswordFocusChanged(TextView passwordInput, boolean hasFocus) {
 613         if (hasFocus) {
 614             showViewPasswordButton();
 615         } else {
 616             hidePassword();
 617             hidePasswordButton();
 618         }
 619     }
 620
 621
 622     private void showViewPasswordButton() {
 623         //int drawable = android.R.drawable.ic_menu_view;
 624         int drawable = R.drawable.ic_view;
 625         if (isPasswordVisible()) {
 626             //drawable = android.R.drawable.ic_secure;
 627             drawable = R.drawable.ic_hide;
 628         }
 629         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, drawable, 0);
 630     }
 631
 632     private boolean isPasswordVisible() {
 633         return ((mPasswordInput.getInputType() & InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD) == InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
 634     }
 635
 636     private void hidePasswordButton() {
 637         mPasswordInput.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0);
 638     }
 639
 640     private void showPassword() {
 641         mPasswordInput.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_VISIBLE_PASSWORD);
 642         showViewPasswordButton();
 643     }
 644
 645     private void hidePassword() {
 646         mPasswordInput.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_PASSWORD);
 647         showViewPasswordButton();
 648     }
 649
 650
 651     /**
 652      * Cancels the authenticator activity
 653      *
 654      * IMPORTANT ENTRY POINT 3: Never underestimate the importance of cancellation
 655      *
 656      * This method is bound in the layout/acceoun_setup.xml resource file.
 657      *
 658      * @param view      Cancel button
 659      */
 660     public void onCancelClick(View view) {
 661         setResult(RESULT_CANCELED);     // TODO review how is this related to AccountAuthenticator (debugging)
 662         finish();
 663     }
 664
 665
 666
 667     /**
 668      * Checks the credentials of the user in the root of the ownCloud server
 669      * before creating a new local account.
 670      *
 671      * For basic authorization, a check of existence of the root folder is
 672      * performed.
 673      *
 674      * For OAuth, starts the flow to get an access token; the credentials test
 675      * is postponed until it is available.
 676      *
 677      * IMPORTANT ENTRY POINT 4
 678      *
 679      * @param view      OK button
 680      */
 681     public void onOkClick(View view) {
 682         // this check should be unnecessary
 683         if (mDiscoveredVersion == null || !mDiscoveredVersion.isVersionValid()  || mHostBaseUrl == null || mHostBaseUrl.length() == 0) {
 684             mServerStatusIcon = R.drawable.common_error;
 685             mServerStatusText = R.string.auth_wtf_reenter_URL;
 686             showServerStatus();
 687             mOkButton.setEnabled(false);
 688             Log_OC.wtf(TAG,  "The user was allowed to click 'connect' to an unchecked server!!");
 689             return;
 690         }
 691
 692         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
 693             startOauthorization();
 694         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
 695             startSamlBasedFederatedSingleSignOnAuthorization();
 696         } else {
 697             checkBasicAuthorization();
 698         }
 699     }
 700
 701
 702     /**
 703      * Tests the credentials entered by the user performing a check of existence on
 704      * the root folder of the ownCloud server.
 705      */
 706     private void checkBasicAuthorization() {
 707         /// get the path to the root folder through WebDAV from the version server
 708         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 709
 710         /// get basic credentials entered by user
 711         String username = mUsernameInput.getText().toString();
 712         String password = mPasswordInput.getText().toString();
 713
 714         /// be gentle with the user
 715         showDialog(DIALOG_LOGIN_PROGRESS);
 716
 717         /// test credentials accessing the root folder
 718         mAuthCheckOperation = new  ExistenceCheckRemoteOperation("", this, false);
 719         WebdavClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, true);
 720         client.setBasicCredentials(username, password);
 721         mOperationThread = mAuthCheckOperation.execute(client, this, mHandler);
 722     }
 723
 724
 725     /**
 726      * Starts the OAuth 'grant type' flow to get an access token, with
 727      * a GET AUTHORIZATION request to the BUILT-IN authorization server.
 728      */
 729     private void startOauthorization() {
 730         // be gentle with the user
 731         mAuthStatusIcon = R.drawable.progress_small;
 732         mAuthStatusText = R.string.oauth_login_connection;
 733         showAuthStatus();
 734
 735
 736         // GET AUTHORIZATION request
 737         //Uri uri = Uri.parse(getString(R.string.oauth2_url_endpoint_auth));
 738         Uri uri = Uri.parse(mOAuthAuthEndpointText.getText().toString().trim());
 739         Uri.Builder uriBuilder = uri.buildUpon();
 740         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_RESPONSE_TYPE, getString(R.string.oauth2_response_type));
 741         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_REDIRECT_URI, getString(R.string.oauth2_redirect_uri));
 742         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_CLIENT_ID, getString(R.string.oauth2_client_id));
 743         uriBuilder.appendQueryParameter(OAuth2Constants.KEY_SCOPE, getString(R.string.oauth2_scope));
 744         //uriBuilder.appendQueryParameter(OAuth2Constants.KEY_STATE, whateverwewant);
 745         uri = uriBuilder.build();
 746         Log_OC.d(TAG, "Starting browser to view " + uri.toString());
 747         Intent i = new Intent(Intent.ACTION_VIEW, uri);
 748         startActivity(i);
 749     }
 750
 751
 752     /**
 753      * Starts the Web Single Sign On flow to get access to the root folder
 754      * in the server.
 755      */
 756     private void startSamlBasedFederatedSingleSignOnAuthorization() {
 757         // be gentle with the user
 758         mAuthStatusIcon = R.drawable.progress_small;
 759         mAuthStatusText = R.string.auth_connecting_auth_server;
 760         showAuthStatus();
 761         showDialog(DIALOG_LOGIN_PROGRESS);
 762
 763         /// get the path to the root folder through WebDAV from the version server
 764         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 765
 766         /// test credentials accessing the root folder
 767         mAuthCheckOperation = new  ExistenceCheckRemoteOperation("", this, false);
 768         WebdavClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, false);
 769         mOperationThread = mAuthCheckOperation.execute(client, this, mHandler);
 770
 771     }
 772
 773     /**
 774      * Callback method invoked when a RemoteOperation executed by this Activity finishes.
 775      *
 776      * Dispatches the operation flow to the right method.
 777      */
 778     @Override
 779     public void onRemoteOperationFinish(RemoteOperation operation, RemoteOperationResult result) {
 780
 781         if (operation instanceof OwnCloudServerCheckOperation) {
 782             onOcServerCheckFinish((OwnCloudServerCheckOperation) operation, result);
 783
 784         } else if (operation instanceof OAuth2GetAccessToken) {
 785             onGetOAuthAccessTokenFinish((OAuth2GetAccessToken)operation, result);
 786
 787         } else if (operation instanceof ExistenceCheckRemoteOperation)  {
 788             if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
 789                 onSamlBasedFederatedSingleSignOnAuthorizationStart(operation, result);
 790
 791             } else {
 792                 onAuthorizationCheckFinish((ExistenceCheckRemoteOperation)operation, result);
 793             }
 794         } else if (operation instanceof GetUserNameRemoteOperation) {
 795             onGetUserNameFinish((GetUserNameRemoteOperation) operation, result);
 796
 797         }
 798
 799     }
 800
 801     private void onGetUserNameFinish(GetUserNameRemoteOperation operation, RemoteOperationResult result) {
 802         if (result.isSuccess()) {
 803             boolean success = false;
 804             String username = operation.getUserName();
 805
 806             if ( mAction == ACTION_CREATE) {
 807                 mUsernameInput.setText(username);
 808                 createAccount();
 809                 success = true;
 810             } else {
 811
 812                 if (!mUsernameInput.getText().toString().equals(username)) {
 813                     // fail - not a new account, but an existing one; disallow
 814                     result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_THE_SAME);
 815                     updateAuthStatusIconAndText(result);
 816                     showAuthStatus();
 817                     Log_OC.d(TAG, result.getLogMessage());
 818                 } else {
 819                   updateToken();
 820                   success = true;
 821                 }
 822             }
 823
 824             if (success)
 825                 finish();
 826         }
 827
 828     }
 829
 830     private void onSamlBasedFederatedSingleSignOnAuthorizationStart(RemoteOperation operation, RemoteOperationResult result) {
 831         try {
 832             dismissDialog(DIALOG_LOGIN_PROGRESS);
 833         } catch (IllegalArgumentException e) {
 834             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
 835         }
 836
 837         //if (result.isTemporalRedirection() && result.isIdPRedirection()) {
 838         if (result.isIdPRedirection()) {
 839             String url = result.getRedirectedLocation();
 840             String targetUrl = mHostBaseUrl + AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
 841
 842             // Show dialog
 843             mSamlDialog = SamlWebViewDialog.newInstance(url, targetUrl);
 844             mSamlDialog.show(getSupportFragmentManager(), TAG_SAML_DIALOG);
 845
 846             mAuthStatusIcon = 0;
 847             mAuthStatusText = 0;
 848
 849         } else {
 850             mAuthStatusIcon = R.drawable.common_error;
 851             mAuthStatusText = R.string.auth_unsupported_auth_method;
 852
 853         }
 854         showAuthStatus();
 855     }
 856
 857
 858     /**
 859      * Processes the result of the server check performed when the user finishes the enter of the
 860      * server URL.
 861      *
 862      * @param operation     Server check performed.
 863      * @param result        Result of the check.
 864      */
 865     private void onOcServerCheckFinish(OwnCloudServerCheckOperation operation, RemoteOperationResult result) {
 866         if (operation.equals(mOcServerChkOperation)) {
 867             /// save result state
 868             mServerIsChecked = true;
 869             mServerIsValid = result.isSuccess();
 870             mIsSslConn = (result.getCode() == ResultCode.OK_SSL);
 871             mOcServerChkOperation = null;
 872
 873             /// update status icon and text
 874             if (mServerIsValid) {
 875                 hideRefreshButton();
 876             } else {
 877                 showRefreshButton();
 878             }
 879             updateServerStatusIconAndText(result);
 880             showServerStatus();
 881
 882             /// very special case (TODO: move to a common place for all the remote operations)
 883             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
 884                 mLastSslUntrustedServerResult = result;
 885                 showDialog(DIALOG_SSL_VALIDATOR);
 886             }
 887
 888             /// retrieve discovered version and normalize server URL
 889             mDiscoveredVersion = operation.getDiscoveredVersion();
 890             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
 891
 892             /// allow or not the user try to access the server
 893             mOkButton.setEnabled(mServerIsValid);
 894
 895         }   // else nothing ; only the last check operation is considered;
 896         // multiple can be triggered if the user amends a URL before a previous check can be triggered
 897     }
 898
 899
 900     private String normalizeUrl(String url) {
 901         if (url != null && url.length() > 0) {
 902             url = url.trim();
 903             if (!url.toLowerCase().startsWith("http://") &&
 904                     !url.toLowerCase().startsWith("https://")) {
 905                 if (mIsSslConn) {
 906                     url = "https://" + url;
 907                 } else {
 908                     url = "http://" + url;
 909                 }
 910             }
 911
 912             // OC-208: Add suffix remote.php/webdav to normalize (OC-34)
 913             url = trimUrlWebdav(url);
 914
 915             if (url.endsWith("/")) {
 916                 url = url.substring(0, url.length() - 1);
 917             }
 918
 919         }
 920         return (url != null ? url : "");
 921     }
 922
 923
 924     private String trimUrlWebdav(String url){
 925         if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_4_0)){
 926             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_4_0.length());
 927         } else if(url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_2_0)){
 928             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_2_0.length());
 929         } else if (url.toLowerCase().endsWith(AccountUtils.WEBDAV_PATH_1_2)){
 930             url = url.substring(0, url.length() - AccountUtils.WEBDAV_PATH_1_2.length());
 931         }
 932         return (url != null ? url : "");
 933     }
 934
 935
 936     /**
 937      * Chooses the right icon and text to show to the user for the received operation result.
 938      *
 939      * @param result    Result of a remote operation performed in this activity
 940      */
 941     private void updateServerStatusIconAndText(RemoteOperationResult result) {
 942         mServerStatusIcon = R.drawable.common_error;    // the most common case in the switch below
 943
 944         switch (result.getCode()) {
 945         case OK_SSL:
 946             mServerStatusIcon = android.R.drawable.ic_secure;
 947             mServerStatusText = R.string.auth_secure_connection;
 948             break;
 949
 950         case OK_NO_SSL:
 951         case OK:
 952             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
 953                 mServerStatusText = R.string.auth_connection_established;
 954                 mServerStatusIcon = R.drawable.ic_ok;
 955             } else {
 956                 mServerStatusText = R.string.auth_nossl_plain_ok_title;
 957                 mServerStatusIcon = android.R.drawable.ic_partial_secure;
 958             }
 959             break;
 960
 961         case NO_NETWORK_CONNECTION:
 962             mServerStatusIcon = R.drawable.no_network;
 963             mServerStatusText = R.string.auth_no_net_conn_title;
 964             break;
 965
 966         case SSL_RECOVERABLE_PEER_UNVERIFIED:
 967             mServerStatusText = R.string.auth_ssl_unverified_server_title;
 968             break;
 969         case BAD_OC_VERSION:
 970             mServerStatusText = R.string.auth_bad_oc_version_title;
 971             break;
 972         case WRONG_CONNECTION:
 973             mServerStatusText = R.string.auth_wrong_connection_title;
 974             break;
 975         case TIMEOUT:
 976             mServerStatusText = R.string.auth_timeout_title;
 977             break;
 978         case INCORRECT_ADDRESS:
 979             mServerStatusText = R.string.auth_incorrect_address_title;
 980             break;
 981         case SSL_ERROR:
 982             mServerStatusText = R.string.auth_ssl_general_error_title;
 983             break;
 984         case UNAUTHORIZED:
 985             mServerStatusText = R.string.auth_unauthorized;
 986             break;
 987         case HOST_NOT_AVAILABLE:
 988             mServerStatusText = R.string.auth_unknown_host_title;
 989             break;
 990         case INSTANCE_NOT_CONFIGURED:
 991             mServerStatusText = R.string.auth_not_configured_title;
 992             break;
 993         case FILE_NOT_FOUND:
 994             mServerStatusText = R.string.auth_incorrect_path_title;
 995             break;
 996         case OAUTH2_ERROR:
 997             mServerStatusText = R.string.auth_oauth_error;
 998             break;
 999         case OAUTH2_ERROR_ACCESS_DENIED:
1000             mServerStatusText = R.string.auth_oauth_error_access_denied;
1001             break;
1002         case UNHANDLED_HTTP_CODE:
1003         case UNKNOWN_ERROR:
1004             mServerStatusText = R.string.auth_unknown_error_title;
1005             break;
1006         default:
1007             mServerStatusText = 0;
1008             mServerStatusIcon = 0;
1009         }
1010     }
1011
1012
1013     /**
1014      * Chooses the right icon and text to show to the user for the received operation result.
1015      *
1016      * @param result    Result of a remote operation performed in this activity
1017      */
1018     private void updateAuthStatusIconAndText(RemoteOperationResult result) {
1019         mAuthStatusIcon = R.drawable.common_error;    // the most common case in the switch below
1020
1021         switch (result.getCode()) {
1022         case OK_SSL:
1023             mAuthStatusIcon = android.R.drawable.ic_secure;
1024             mAuthStatusText = R.string.auth_secure_connection;
1025             break;
1026
1027         case OK_NO_SSL:
1028         case OK:
1029             if (mHostUrlInput.getText().toString().trim().toLowerCase().startsWith("http://") ) {
1030                 mAuthStatusText = R.string.auth_connection_established;
1031                 mAuthStatusIcon = R.drawable.ic_ok;
1032             } else {
1033                 mAuthStatusText = R.string.auth_nossl_plain_ok_title;
1034                 mAuthStatusIcon = android.R.drawable.ic_partial_secure;
1035             }
1036             break;
1037
1038         case NO_NETWORK_CONNECTION:
1039             mAuthStatusIcon = R.drawable.no_network;
1040             mAuthStatusText = R.string.auth_no_net_conn_title;
1041             break;
1042
1043         case SSL_RECOVERABLE_PEER_UNVERIFIED:
1044             mAuthStatusText = R.string.auth_ssl_unverified_server_title;
1045             break;
1046         case BAD_OC_VERSION:
1047             mAuthStatusText = R.string.auth_bad_oc_version_title;
1048             break;
1049         case WRONG_CONNECTION:
1050             mAuthStatusText = R.string.auth_wrong_connection_title;
1051             break;
1052         case TIMEOUT:
1053             mAuthStatusText = R.string.auth_timeout_title;
1054             break;
1055         case INCORRECT_ADDRESS:
1056             mAuthStatusText = R.string.auth_incorrect_address_title;
1057             break;
1058         case SSL_ERROR:
1059             mAuthStatusText = R.string.auth_ssl_general_error_title;
1060             break;
1061         case UNAUTHORIZED:
1062             mAuthStatusText = R.string.auth_unauthorized;
1063             break;
1064         case HOST_NOT_AVAILABLE:
1065             mAuthStatusText = R.string.auth_unknown_host_title;
1066             break;
1067         case INSTANCE_NOT_CONFIGURED:
1068             mAuthStatusText = R.string.auth_not_configured_title;
1069             break;
1070         case FILE_NOT_FOUND:
1071             mAuthStatusText = R.string.auth_incorrect_path_title;
1072             break;
1073         case OAUTH2_ERROR:
1074             mAuthStatusText = R.string.auth_oauth_error;
1075             break;
1076         case OAUTH2_ERROR_ACCESS_DENIED:
1077             mAuthStatusText = R.string.auth_oauth_error_access_denied;
1078             break;
1079         case ACCOUNT_NOT_NEW:
1080             mAuthStatusText = R.string.auth_account_not_new;
1081             break;
1082         case ACCOUNT_NOT_THE_SAME:
1083             mAuthStatusText = R.string.auth_account_not_the_same;
1084             break;
1085         case UNHANDLED_HTTP_CODE:
1086         case UNKNOWN_ERROR:
1087             mAuthStatusText = R.string.auth_unknown_error_title;
1088             break;
1089         default:
1090             mAuthStatusText = 0;
1091             mAuthStatusIcon = 0;
1092         }
1093     }
1094
1095
1096     /**
1097      * Processes the result of the request for and access token send
1098      * to an OAuth authorization server.
1099      *
1100      * @param operation     Operation performed requesting the access token.
1101      * @param result        Result of the operation.
1102      */
1103     private void onGetOAuthAccessTokenFinish(OAuth2GetAccessToken operation, RemoteOperationResult result) {
1104         try {
1105             dismissDialog(DIALOG_OAUTH2_LOGIN_PROGRESS);
1106         } catch (IllegalArgumentException e) {
1107             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
1108         }
1109
1110         String webdav_path = AccountUtils.getWebdavPath(mDiscoveredVersion, mAuthTokenType);
1111         if (result.isSuccess() && webdav_path != null) {
1112             /// be gentle with the user
1113             showDialog(DIALOG_LOGIN_PROGRESS);
1114
1115             /// time to test the retrieved access token on the ownCloud server
1116             mAuthToken = ((OAuth2GetAccessToken)operation).getResultTokenMap().get(OAuth2Constants.KEY_ACCESS_TOKEN);
1117             Log_OC.d(TAG, "Got ACCESS TOKEN: " + mAuthToken);
1118             mAuthCheckOperation = new ExistenceCheckRemoteOperation("", this, false);
1119             WebdavClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl + webdav_path), this, true);
1120             client.setBearerCredentials(mAuthToken);
1121             mAuthCheckOperation.execute(client, this, mHandler);
1122
1123         } else {
1124             updateAuthStatusIconAndText(result);
1125             showAuthStatus();
1126             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1127         }
1128     }
1129
1130
1131     /**
1132      * Processes the result of the access check performed to try the user credentials.
1133      *
1134      * Creates a new account through the AccountManager.
1135      *
1136      * @param operation     Access check performed.
1137      * @param result        Result of the operation.
1138      */
1139     private void onAuthorizationCheckFinish(ExistenceCheckRemoteOperation operation, RemoteOperationResult result) {
1140         try {
1141             dismissDialog(DIALOG_LOGIN_PROGRESS);
1142         } catch (IllegalArgumentException e) {
1143             // NOTHING TO DO ; can't find out what situation that leads to the exception in this code, but user logs signal that it happens
1144         }
1145
1146         if (result.isSuccess()) {
1147             Log_OC.d(TAG, "Successful access - time to save the account");
1148
1149             boolean success = false;
1150             if (mAction == ACTION_CREATE) {
1151                 success = createAccount();
1152
1153             } else {
1154                 updateToken();
1155                 success = true;
1156             }
1157
1158             if (success) {
1159                 finish();
1160             }
1161
1162         } else if (result.isServerFail() || result.isException()) {
1163             /// if server fail or exception in authorization, the UI is updated as when a server check failed
1164             mServerIsChecked = true;
1165             mServerIsValid = false;
1166             mIsSslConn = false;
1167             mOcServerChkOperation = null;
1168             mDiscoveredVersion = null;
1169             mHostBaseUrl = normalizeUrl(mHostUrlInput.getText().toString());
1170
1171             // update status icon and text
1172             updateServerStatusIconAndText(result);
1173             showServerStatus();
1174             mAuthStatusIcon = 0;
1175             mAuthStatusText = 0;
1176             showAuthStatus();
1177
1178             // update input controls state
1179             showRefreshButton();
1180             mOkButton.setEnabled(false);
1181
1182             // very special case (TODO: move to a common place for all the remote operations) (dangerous here?)
1183             if (result.getCode() == ResultCode.SSL_RECOVERABLE_PEER_UNVERIFIED) {
1184                 mLastSslUntrustedServerResult = result;
1185                 showDialog(DIALOG_SSL_VALIDATOR);
1186             }
1187
1188         } else {    // authorization fail due to client side - probably wrong credentials
1189             updateAuthStatusIconAndText(result);
1190             showAuthStatus();
1191             Log_OC.d(TAG, "Access failed: " + result.getLogMessage());
1192         }
1193
1194     }
1195
1196
1197     /**
1198      * Sets the proper response to get that the Account Authenticator that started this activity saves
1199      * a new authorization token for mAccount.
1200      */
1201     private void updateToken() {
1202         Bundle response = new Bundle();
1203         response.putString(AccountManager.KEY_ACCOUNT_NAME, mAccount.name);
1204         response.putString(AccountManager.KEY_ACCOUNT_TYPE, mAccount.type);
1205
1206         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
1207             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1208             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1209             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1210
1211         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
1212
1213             response.putString(AccountManager.KEY_AUTHTOKEN, mAuthToken);
1214             // the next line is necessary; by now, notifications are calling directly to the AuthenticatorActivity to update, without AccountManager intervention
1215             mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1216
1217         } else {
1218             response.putString(AccountManager.KEY_AUTHTOKEN, mPasswordInput.getText().toString());
1219             mAccountMgr.setPassword(mAccount, mPasswordInput.getText().toString());
1220         }
1221         setAccountAuthenticatorResult(response);
1222
1223     }
1224
1225
1226     /**
1227      * Creates a new account through the Account Authenticator that started this activity.
1228      *
1229      * This makes the account permanent.
1230      *
1231      * TODO Decide how to name the OAuth accounts
1232      */
1233     private boolean createAccount() {
1234         /// create and save new ownCloud account
1235         boolean isOAuth = AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType);
1236         boolean isSaml =  AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType);
1237
1238         Uri uri = Uri.parse(mHostBaseUrl);
1239         String username = mUsernameInput.getText().toString().trim();
1240         if (isOAuth) {
1241             username = "OAuth_user" + (new java.util.Random(System.currentTimeMillis())).nextLong();
1242         }
1243         String accountName = username + "@" + uri.getHost();
1244         if (uri.getPort() >= 0) {
1245             accountName += ":" + uri.getPort();
1246         }
1247         mAccount = new Account(accountName, MainApp.getAccountType());
1248         if (AccountUtils.exists(mAccount, getApplicationContext())) {
1249             // fail - not a new account, but an existing one; disallow
1250             RemoteOperationResult result = new RemoteOperationResult(ResultCode.ACCOUNT_NOT_NEW);
1251             updateAuthStatusIconAndText(result);
1252             showAuthStatus();
1253             Log_OC.d(TAG, result.getLogMessage());
1254             return false;
1255
1256         } else {
1257
1258             if (isOAuth || isSaml) {
1259                 mAccountMgr.addAccountExplicitly(mAccount, "", null);  // with external authorizations, the password is never input in the app
1260             } else {
1261                 mAccountMgr.addAccountExplicitly(mAccount, mPasswordInput.getText().toString(), null);
1262             }
1263
1264             /// add the new account as default in preferences, if there is none already
1265             Account defaultAccount = AccountUtils.getCurrentOwnCloudAccount(this);
1266             if (defaultAccount == null) {
1267                 SharedPreferences.Editor editor = PreferenceManager
1268                         .getDefaultSharedPreferences(this).edit();
1269                 editor.putString("select_oc_account", accountName);
1270                 editor.commit();
1271             }
1272
1273             /// prepare result to return to the Authenticator
1274             //  TODO check again what the Authenticator makes with it; probably has the same effect as addAccountExplicitly, but it's not well done
1275             final Intent intent = new Intent();
1276             intent.putExtra(AccountManager.KEY_ACCOUNT_TYPE,    MainApp.getAccountType());
1277             intent.putExtra(AccountManager.KEY_ACCOUNT_NAME,    mAccount.name);
1278             /*if (!isOAuth)
1279                 intent.putExtra(AccountManager.KEY_AUTHTOKEN,   MainApp.getAccountType()); */
1280             intent.putExtra(AccountManager.KEY_USERDATA,        username);
1281             if (isOAuth || isSaml) {
1282                 mAccountMgr.setAuthToken(mAccount, mAuthTokenType, mAuthToken);
1283             }
1284             /// add user data to the new account; TODO probably can be done in the last parameter addAccountExplicitly, or in KEY_USERDATA
1285             mAccountMgr.setUserData(mAccount, OwnCloudAccount.Constants.KEY_OC_VERSION,    mDiscoveredVersion.toString());
1286             mAccountMgr.setUserData(mAccount, OwnCloudAccount.Constants.KEY_OC_BASE_URL,   mHostBaseUrl);
1287             if (isSaml) {
1288                 mAccountMgr.setUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_SAML_WEB_SSO, "TRUE");
1289             } else if (isOAuth) {
1290                 mAccountMgr.setUserData(mAccount, OwnCloudAccount.Constants.KEY_SUPPORTS_OAUTH2, "TRUE");
1291             }
1292
1293             setAccountAuthenticatorResult(intent.getExtras());
1294             setResult(RESULT_OK, intent);
1295
1296             return true;
1297         }
1298     }
1299
1300
1301     /**
1302      * {@inheritDoc}
1303      *
1304      * Necessary to update the contents of the SSL Dialog
1305      *
1306      * TODO move to some common place for all possible untrusted SSL failures
1307      */
1308     @Override
1309     protected void onPrepareDialog(int id, Dialog dialog, Bundle args) {
1310         switch (id) {
1311         case DIALOG_LOGIN_PROGRESS:
1312         case DIALOG_CERT_NOT_SAVED:
1313         case DIALOG_OAUTH2_LOGIN_PROGRESS:
1314             break;
1315         case DIALOG_SSL_VALIDATOR: {
1316             ((SslValidatorDialog)dialog).updateResult(mLastSslUntrustedServerResult);
1317             break;
1318         }
1319         default:
1320             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1321         }
1322     }
1323
1324
1325     /**
1326      * {@inheritDoc}
1327      */
1328     @Override
1329     protected Dialog onCreateDialog(int id) {
1330         Dialog dialog = null;
1331         switch (id) {
1332         case DIALOG_LOGIN_PROGRESS: {
1333             /// simple progress dialog
1334             ProgressDialog working_dialog = new ProgressDialog(this);
1335             working_dialog.setMessage(getResources().getString(R.string.auth_trying_to_login));
1336             working_dialog.setIndeterminate(true);
1337             working_dialog.setCancelable(true);
1338             working_dialog
1339             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1340                 @Override
1341                 public void onCancel(DialogInterface dialog) {
1342                     /// TODO study if this is enough
1343                     Log_OC.i(TAG, "Login canceled");
1344                     if (mOperationThread != null) {
1345                         mOperationThread.interrupt();
1346                         finish();
1347                     }
1348                 }
1349             });
1350             dialog = working_dialog;
1351             break;
1352         }
1353         case DIALOG_OAUTH2_LOGIN_PROGRESS: {
1354             ProgressDialog working_dialog = new ProgressDialog(this);
1355             working_dialog.setMessage(String.format("Getting authorization"));
1356             working_dialog.setIndeterminate(true);
1357             working_dialog.setCancelable(true);
1358             working_dialog
1359             .setOnCancelListener(new DialogInterface.OnCancelListener() {
1360                 @Override
1361                 public void onCancel(DialogInterface dialog) {
1362                     Log_OC.i(TAG, "Login canceled");
1363                     finish();
1364                 }
1365             });
1366             dialog = working_dialog;
1367             break;
1368         }
1369         case DIALOG_SSL_VALIDATOR: {
1370             /// TODO start to use new dialog interface, at least for this (it is a FragmentDialog already)
1371             dialog = SslValidatorDialog.newInstance(this, mLastSslUntrustedServerResult, this);
1372             break;
1373         }
1374         case DIALOG_CERT_NOT_SAVED: {
1375             AlertDialog.Builder builder = new AlertDialog.Builder(this);
1376             builder.setMessage(getResources().getString(R.string.ssl_validator_not_saved));
1377             builder.setCancelable(false);
1378             builder.setPositiveButton(R.string.common_ok, new DialogInterface.OnClickListener() {
1379                 @Override
1380                 public void onClick(DialogInterface dialog, int which) {
1381                     dialog.dismiss();
1382                 };
1383             });
1384             dialog = builder.create();
1385             break;
1386         }
1387         default:
1388             Log_OC.e(TAG, "Incorrect dialog called with id = " + id);
1389         }
1390         return dialog;
1391     }
1392
1393
1394     /**
1395      * Starts and activity to open the 'new account' page in the ownCloud web site
1396      *
1397      * @param view      'Account register' button
1398      */
1399     public void onRegisterClick(View view) {
1400         Intent register = new Intent(Intent.ACTION_VIEW, Uri.parse(getString(R.string.welcome_link_url)));
1401         setResult(RESULT_CANCELED);
1402         startActivity(register);
1403     }
1404
1405
1406     /**
1407      * Updates the content and visibility state of the icon and text associated
1408      * to the last check on the ownCloud server.
1409      */
1410     private void showServerStatus() {
1411         TextView tv = (TextView) findViewById(R.id.server_status_text);
1412
1413         if (mServerStatusIcon == 0 && mServerStatusText == 0) {
1414             tv.setVisibility(View.INVISIBLE);
1415
1416         } else {
1417             tv.setText(mServerStatusText);
1418             tv.setCompoundDrawablesWithIntrinsicBounds(mServerStatusIcon, 0, 0, 0);
1419             tv.setVisibility(View.VISIBLE);
1420         }
1421
1422     }
1423
1424
1425     /**
1426      * Updates the content and visibility state of the icon and text associated
1427      * to the interactions with the OAuth authorization server.
1428      */
1429     private void showAuthStatus() {
1430         if (mAuthStatusIcon == 0 && mAuthStatusText == 0) {
1431             mAuthStatusLayout.setVisibility(View.INVISIBLE);
1432
1433         } else {
1434             mAuthStatusLayout.setText(mAuthStatusText);
1435             mAuthStatusLayout.setCompoundDrawablesWithIntrinsicBounds(mAuthStatusIcon, 0, 0, 0);
1436             mAuthStatusLayout.setVisibility(View.VISIBLE);
1437         }
1438     }
1439
1440
1441     private void showRefreshButton() {
1442         mRefreshButton.setVisibility(View.VISIBLE);
1443     }
1444
1445     private void hideRefreshButton() {
1446         mRefreshButton.setVisibility(View.GONE);
1447     }
1448
1449     /**
1450      * Called when the refresh button in the input field for ownCloud host is clicked.
1451      *
1452      * Performs a new check on the URL in the input field.
1453      *
1454      * @param view      Refresh 'button'
1455      */
1456     public void onRefreshClick(View view) {
1457         checkOcServer();
1458     }
1459
1460
1461     /**
1462      * Called when the eye icon in the password field is clicked.
1463      *
1464      * Toggles the visibility of the password in the field.
1465      */
1466     public void onViewPasswordClick() {
1467         int selectionStart = mPasswordInput.getSelectionStart();
1468         int selectionEnd = mPasswordInput.getSelectionEnd();
1469         if (isPasswordVisible()) {
1470             hidePassword();
1471         } else {
1472             showPassword();
1473         }
1474         mPasswordInput.setSelection(selectionStart, selectionEnd);
1475     }
1476
1477
1478     /**
1479      * Called when the checkbox for OAuth authorization is clicked.
1480      *
1481      * Hides or shows the input fields for user & password.
1482      *
1483      * @param view      'View password' 'button'
1484      */
1485     public void onCheckClick(View view) {
1486         CheckBox oAuth2Check = (CheckBox)view;
1487         if (oAuth2Check.isChecked()) {
1488             mAuthTokenType = AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType());
1489         } else {
1490             mAuthTokenType = AccountTypeUtils.getAuthTokenTypePass(MainApp.getAccountType());
1491         }
1492         adaptViewAccordingToAuthenticationMethod();
1493     }
1494
1495
1496     /**
1497      * Changes the visibility of input elements depending on
1498      * the current authorization method.
1499      */
1500     private void adaptViewAccordingToAuthenticationMethod () {
1501         if (AccountTypeUtils.getAuthTokenTypeAccessToken(MainApp.getAccountType()).equals(mAuthTokenType)) {
1502             // OAuth 2 authorization
1503             mOAuthAuthEndpointText.setVisibility(View.VISIBLE);
1504             mOAuthTokenEndpointText.setVisibility(View.VISIBLE);
1505             mUsernameInput.setVisibility(View.GONE);
1506             mPasswordInput.setVisibility(View.GONE);
1507
1508         } else if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
1509             // SAML-based web Single Sign On
1510             mOAuthAuthEndpointText.setVisibility(View.GONE);
1511             mOAuthTokenEndpointText.setVisibility(View.GONE);
1512             mUsernameInput.setVisibility(View.GONE);
1513             mPasswordInput.setVisibility(View.GONE);
1514         } else {
1515             // basic HTTP authorization
1516             mOAuthAuthEndpointText.setVisibility(View.GONE);
1517             mOAuthTokenEndpointText.setVisibility(View.GONE);
1518             mUsernameInput.setVisibility(View.VISIBLE);
1519             mPasswordInput.setVisibility(View.VISIBLE);
1520         }
1521     }
1522
1523     /**
1524      * Called from SslValidatorDialog when a new server certificate was correctly saved.
1525      */
1526     public void onSavedCertificate() {
1527         checkOcServer();
1528     }
1529
1530     /**
1531      * Called from SslValidatorDialog when a new server certificate could not be saved
1532      * when the user requested it.
1533      */
1534     @Override
1535     public void onFailedSavingCertificate() {
1536         showDialog(DIALOG_CERT_NOT_SAVED);
1537     }
1538
1539
1540     /**
1541      *  Called when the 'action' button in an IME is pressed ('enter' in software keyboard).
1542      *
1543      *  Used to trigger the authentication check when the user presses 'enter' after writing the password,
1544      *  or to throw the server test when the only field on screen is the URL input field.
1545      */
1546     @Override
1547     public boolean onEditorAction(TextView inputField, int actionId, KeyEvent event) {
1548         if (actionId == EditorInfo.IME_ACTION_DONE && inputField != null && inputField.equals(mPasswordInput)) {
1549             if (mOkButton.isEnabled()) {
1550                 mOkButton.performClick();
1551             }
1552
1553         } else if (actionId == EditorInfo.IME_ACTION_NEXT && inputField != null && inputField.equals(mHostUrlInput)) {
1554             if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType)) {
1555                 checkOcServer();
1556             }
1557         }
1558         return false;   // always return false to grant that the software keyboard is hidden anyway
1559     }
1560
1561
1562     private abstract static class RightDrawableOnTouchListener implements OnTouchListener  {
1563
1564         private int fuzz = 75;
1565
1566         /**
1567          * {@inheritDoc}
1568          */
1569         @Override
1570         public boolean onTouch(View view, MotionEvent event) {
1571             Drawable rightDrawable = null;
1572             if (view instanceof TextView) {
1573                 Drawable[] drawables = ((TextView)view).getCompoundDrawables();
1574                 if (drawables.length > 2) {
1575                     rightDrawable = drawables[2];
1576                 }
1577             }
1578             if (rightDrawable != null) {
1579                 final int x = (int) event.getX();
1580                 final int y = (int) event.getY();
1581                 final Rect bounds = rightDrawable.getBounds();
1582                 if (x >= (view.getRight() - bounds.width() - fuzz) && x <= (view.getRight() - view.getPaddingRight() + fuzz)
1583                     && y >= (view.getPaddingTop() - fuzz) && y <= (view.getHeight() - view.getPaddingBottom()) + fuzz) {
1584
1585                     return onDrawableTouch(event);
1586                 }
1587             }
1588             return false;
1589         }
1590
1591         public abstract boolean onDrawableTouch(final MotionEvent event);
1592     }
1593
1594
1595     public void onSamlDialogSuccess(String sessionCookie){
1596         mAuthToken = sessionCookie;
1597
1598         if (sessionCookie != null && sessionCookie.length() > 0) {
1599             mAuthToken = sessionCookie;
1600
1601             GetUserNameRemoteOperation getUserOperation = new GetUserNameRemoteOperation();
1602             WebdavClient client = OwnCloudClientFactory.createOwnCloudClient(Uri.parse(mHostBaseUrl), getApplicationContext(), true);
1603             client.setSsoSessionCookie(mAuthToken);
1604             getUserOperation.execute(client, this, mHandler);
1605         }
1606
1607
1608     }
1609
1610
1611     @Override
1612     public void onSsoFinished(String sessionCookies) {
1613         //Toast.makeText(this, "got cookies: " + sessionCookie, Toast.LENGTH_LONG).show();
1614
1615         if (sessionCookies != null && sessionCookies.length() > 0) {
1616             Log_OC.d(TAG, "Successful SSO - time to save the account");
1617             onSamlDialogSuccess(sessionCookies);
1618             Fragment fd = getSupportFragmentManager().findFragmentByTag(TAG_SAML_DIALOG);
1619             if (fd != null && fd instanceof SherlockDialogFragment) {
1620                 Dialog d = ((SherlockDialogFragment)fd).getDialog();
1621                 if (d != null && d.isShowing()) {
1622                     d.dismiss();
1623                 }
1624             }
1625
1626         } else {
1627             // TODO - show fail
1628             Log_OC.d(TAG, "SSO failed");
1629         }
1630
1631     }
1632
1633     /** Show auth_message
1634      *
1635      * @param message
1636      */
1637     private void showAuthMessage(String message) {
1638        mAuthMessage.setVisibility(View.VISIBLE);
1639        mAuthMessage.setText(message);
1640     }
1641
1642     private void hideAuthMessage() {
1643         mAuthMessage.setVisibility(View.GONE);
1644     }
1645
1646     @Override
1647     public boolean onTouchEvent(MotionEvent event) {
1648         if (AccountTypeUtils.getAuthTokenTypeSamlSessionCookie(MainApp.getAccountType()).equals(mAuthTokenType) &&
1649                 mHostUrlInput.hasFocus() && event.getAction() == MotionEvent.ACTION_DOWN) {
1650             checkOcServer();
1651         }
1652         return super.onTouchEvent(event);
1653     }
1654
1655 }